I just had my engine check light came up. I did a test and got the diagnostic codes. But I cant figure out where they pieces are located so I can fix it.
They are:
Airflow Sensor, Idle Air Control (IAC), and Traction Control (TC) vent valve solenoid.

where are they located? Please help

 

Your air flow sensor is usually right after the throttle plate. There should be a throttle position sensor and then the air flow. There might be a diagram on the hood, just look for the Mass Airflow Sensor. Traction control I would think would be around the tires like an ABS sensor but that's just a guess. Idle air control should be somewhere not far off from the intake. You can also pick up a Haynes manual for it and those are great.